Register means for printing presses and application thereof



April 1941'- .J. smKowrz 2.232453 REGISTER MEANS FOR PRINTING PRESSES AND APPLICATION THEREOF" Fil ed May 21, 1940 INVENTOR- 4 r Joseph S/hA ow'fz Patented Apr. 8, 1941 UNITED STATES PATENT REGISTER MEANS FOR PRINTING PRESSES AN D, APPLICATION THEREOF 20 Claims.

Th s nven ion; r lates to r i t means for print ng, resses: en au ipat on' he f- It latesiparticularly, to; a new andimproved register uct ion and a; novel; manner of apetc a memberoftheprinting coui ;pres s;whereby-the cost of making; the; register; means is reduced and its application; to the: press facilitated;- and proper posiqnies Qi' ha re i ter m s h esp to the member; of theprinting couple to which it is apw 1.: fillifiqz- The inventionwill be described for purposes of illustration as; embcdied in a register segment and the application of; such a segment to the cylinder of. a. printing press of the flat bed and cylinder type, although the invention may also be employed; in the manufacture and application oi. thebed-raclg with which the register segment meshes; Referring, to the application of register segments to press cylinders by way of example, it is important that such segments be accurately disposed in their proper operative position. with respect to the cylinder. Normally the pitch line. of the teeth of the register segment should. lie inthe, extended operative or cylindrical surface of. the. cylinder bearer. This is to insure proper meshingof the teeth of the segment with thelteeth ot the bed rack with the pitch lines of the,segmentnand-rack coincident. The segment is ordinarily. bolted to; the. 8nd: of the cylinder. If the bolt holes in the segment and cylinder are made of, such size. as to snugly receive the bolt or bolts which fasten, the segment to; the cylinder great caremustbe taken in thepositioning of the bolth oleorlholes relative totheteeth of the segmentandthe operative surface of the bearer of the cylinder. A slight inaccuracy may. make impossible the proper application of the segment. Moreover, the slight but unavoidable amount of clearance between the bolt, or bolts and the. bolt 0 95 n these ent nd yliudet makes for erta nty. as o; r e ms i onins 2 e, ment, with its pitchlinein. the extended operae i-ve smia eo h bea I; provide anovel, structure and method which greatly facilitate the application of register means to, amemberv of the printing couple of a printing press and insure accurate positioning of the register means relative to the member of the printing coupletowhich the same is applied. I provide for properly and accurately positioning the. register means relatively to the member of the p n n couple. by e nupna v Po it o means which may be removed from positioning the register means to said member.

member of the printing couple upon fastening of Preferably the register means is first positioned relatively to the member of the printing couple to which it is to be applied, proper positioning being insured by said temporary positioning means, after which the register means is fastened to said member, ordinarily by bolting the same thereto. Also after initial positioning of the register means as aforesaid it is preferably doweled to the member of the printing couple to which it is applied to insure its remaining accurately in position during operation of the press. The bolt hole or holes in the register means preferably has or have a. transverse internal dimension greater than the corresponding external dimension of the bolt on like means which fasten the register means to the member of the printing couple so that when the register means is first applied to said member it may be accurately positioned by the temporary positioning means and with the bolt holes in the register means and said member in alignment to permit passage of the bolt or bolts. thereinto despite any slight inaccuracy in positioning of the bolt hole or holes which may occur in manufacture. After the register means isset in proper position the bolt or like means are preferably tightened and then the register means is preferably doweled to the cylinder. The temporary positioning means are removed from positioning engagement. with the member of the printing couple after the register means hasbeen properly positioned and tightened in place.

Other details, objects and advantages of the invention will become apparent as the following description of a present preferred embodiment of the invention and a present preferred method of practicingthe same proceeds.

In the accompanying drawing I, have shown a present preferred embodiment of the invention and have illustrated a present preferred method of practicing the same, in which Figure 1 is an end View of the cylinder of a printing press of the fiat bed and cylinder type showing a. register segment applied thereto and omitting other operating mechanism, the bed rack adaptedto mesh with the register segment also being indicated;

Eigure 2 is a cross-sectional view taken on the line I I -,I I of Figure l but to enlarged scale;

Eigure3 is aface view of the register segment shown in Figures. 1 and 2 drawn to the same scaleas Ii'igure 2; and

Figu e iis a View of said register'segment as engagement or. relationship with respect to the viewedfromthe top in Figure 3.

Referring now more particularly to the drawing, the invention is shown for the purpose of illustration as embodied in a register segment and its application to the cylinder of a printing press of the fiat bed and cylinder type, although the invention is not thus limited but may be embodied in register means adapted for application to either member of the printing couple and the application thereof. The cylinder is designated by reference numeral 2 and may be of standard construction. It comprises a generally cylindrical portion 3 and generally planar end walls one of which is shown at 4. The end wall 4 has the usual bearer 5 for cooperation with the bearer 6 of the bed, as well known in the art. The cylinder is shown in its raised position with the cylinder and bed bearers out of contact. The cylinder is thus raised upon the reverse movement of the bed intermediate printing strokes. When the bed moves forward on a printing stroke the cylinder is lowered so that the cylinder bearer 5 rides upon the bed bearer 6 to insure proper vertical positioning of the cylinder and bed.

A register segment 1 is shown as applied to the cylinder 2 and is adapted to mesh in the usual manner with the register rack 8 of the bed. The pitch line of the teeth of the register rack 8 lies in the extended upper operative surface of the bed bearer 6. general structure like any other register segment but is in certain respects specially designed and constructed to facilitate its application to the cylinder and to insure its proper and accurate positioning despite minor inaccuracies in manufacture. The teeth of the register segment are shown at 9. their pitch line being indicated by the chain line H! in Figure 3. In each of the end teeth 9 there is drilled from the inside face of the segment (that is, the face adapted to lie next the cylinder when the segment is applied thereto) a cylindrical hole II which extends somewhat more than half way through the tooth in. the transverse direction. In each of the holes II is inserted one end of a pin I2 which fits the hole snugly but may be pushed into it to any desired extent. Initially the pins I2 are inserted into the holes I l sufficiently to insure firm positioning of the pins. As shown in Figure 2, they are inserted about half way. The pins must, however, project sufiiciently to serve their function as presently described.

The cylinder is provided with a drilled and tapped hole 13 to receive a bolt M for holding the register segment against the cylinder and the segment is provided with a hole I 5 through which the bolt 14 is adapted to pass but whose internal diameter is substantially greater than the external diameter of the bolt, as shown in Figure 2. Also the segment is provided with dowel holes 16 for the reception of dowel pins, as will presently be described.

In application of the register segment to the cylinder the segment with the pins ll projecting therefrom as shown in Figures 2 and 4 is applied to the cylinder in such manner that the pins l2 rest upon the operative or cylindrical surface of the cylinder bearer 5. The holes II have their lower portions viewing Figures 1, 2 and 3 tangent to the pitch line ll! of the teeth. This relationship is shown in Figure 3. Thus when the segment is applied as shown in Figure 2 the pitch line ll) of the teeth 9 lies in the extended. cylindrical surface of the bearer 5 which determines the correct and operative position of the segment The register segment 1 is in its relative to the cylinder. When the segment is thus positioned the bolt [4 is inserted through the opening l5 in the segment and tightened into the tapped hole I3 in the cylinder to firmly hold the segment against the cylinder as shown in Figure 2. Due to the clearance provided about the bolt M by the hole IS in the segment the holes l3 and 15 will always align to permit reception of the bolt.

With the segment thus held in place dowel holes are drilled in the end wall 4 of the cylinder using the dowel holes IS in the segment as guides and dowel pins are driven into the dowel holes in the segment and cylinder to insure maintenance of the proper operative position of the segment on the cylinder while the bolt I4 is the primary means of holding the segment in place against the cylinder against the stresses imposed on operation of the press.

After the segment has been fastened to the cylinder the temporary positioning pins [2 are removed from their positioning contact with the operative surface of the bearer 5. This may be done in any desired way, as by pulling the pins out of the holes II and discarding them, driving the pins into the holes H so that they will clear the bearer, or cutting ofi' the pins substantially flush with the inside faces of the teeth in which they lie. Thus proper positioning of the register segment is insured regardless of minor inaccuracies in manufacture and the application of the segment is made very easy indeed.

In the claims the word rack is used to denote the portion of the register means having the teeth for meshing with the corresponding register means on the cooperative member of the printing couple and such word rack is to be understood as broad enough to include a curved rack in the form of a segment such as is ordinarily applied to a printing cylinder and also a straight rack such as is ordinarily applied to a type bed to mesh with the segment on the cylinder to perform the usual registering function. Also in certain of the claims the word part is used as relating to the portion of the register means which serves to position the same relatively to the member of the printing couple. This word part is to be understood to comprehend the positioning means whether the same be in the form of two pins as herein disclosed or otherwise.

While I have shown and described a present preferred embodiment of the invention and a present preferred method of practicing the same it is to be distinctly understood that the invention is not so limited but may be otherwise variously embodied and practiced within the scope of the following claims.

I claim:

1. Register means for printing presses comprising a rack for application to a member of the printing couple and temporary positioning means applied to the rack, said positioning means being disposed so that on application of the rack to said member of the printing couple the positioning means will engage a portion of said member to insure proper operative positioning of the rack thereon, the positioning means being removable from positioning engagement with said member of the printing couple upon fastening of .the rack to said member. 7

2. Register means for printing presses comprising a toothed segment for application to a printing cylinder and temporary positioning means applied to the segment, said positioning on, the positioning meansbeing removable from positioning engagement with the cylinder upon fastening of the segment to the cylinder.

3. Register means for printing presses comprising a toothed segment for application to a printing cylinder and temporary positioning means applied to the segment, said positioning means being disposed so that on application of the segment to the cylinder the positioning means will engage a portion of the cylinder bearer to insure proper operative positioning of the segment on the cylinder, the positioning means being removable from positioning engagement with the bearer upon fastening of the segment to the cylinder.

4. Register means for printing presses comprising a rack for application to a member of the printing couple and temporary positioning means applied to the rack, said positioning means being disposed so that on application of the rack to said member of the printing couple the positioning means will rest on a portion of the bearer of said member to insure proper operative positioning of the rack on said member, the positioning means being removable from positioning engagement with the bearer upon fastening of the rack to said member.

5. Register means for printing presses comprising a rack for application to a member of the printing couple, temporary positioning means applied to the rack for positioning the same in proper operative position on said member and means for permanently fastening the rack to said member.

6. Register means for printing presses comprising a rack for application to a member of the printing couple and positioning pins projecting from the rack for positioning the same in proper operative position on said member, said pins being movable out of positioning engagement with said member of the printing couple upon fastening of the rack to said member.

7. Register means for printing presses comprising a rack for application to a member of the printing couple, temporary positioning means applied to the rack for positioning the same in proper operative position on said member and dowel means for permanently positioning the rack On said member.

8. Register means for printing presses comprising a rack for application to a member of the printing couple, temporary positioning means applied to the rack for resting on a portion of said member to position the rack in proper operative position on said memben and means passing through the rack for fastening it to said member.

9. Register means for printing presses comprising a rack for application to a member of the printing couple with the pitch line of the rack teeth lying in the extended operative surface of the bearer of said member, the rack having temporary positioning means adapted to rest on a portion of said surface of the bearer to properly position the rack relatively to said member after which said positioning means are removable from positioning engagement with the bearer.

10. Register means for printing presses comprising a rack for application to a member of the printing couple, the rack having temporary positioning pins projecting laterally therefrom and having at least one opening therethrough for maintaining the rack in position on said member.

11. Register means for printing presses comprising a rack for application to a member of the printing couple, the rack having temporary positioning pins projecting laterally therefrom and having a plurality of dowel pin openings therethrough.

12. Register means for printing presses comprising a rack for application to a member of the printing couple, temporary positioning means applied to the rack for positioning the same in proper operative position on said member and belt or like means for fastening the rack to said member, the rack having at least one opening to r ceive the bolt or like means, said opening or openings having a transverse internal dimension greater than the corresponding external dimension of the bolt or like means to allow for proper positioning of the rack by said temporary positioning means.

13. Register means for printing presses comprising a rack for application to a member of the printing couple with the pitch line of the rack teeth lying in the extended operative surface of the bearer of said member, temporary positioning means applied to the rack, said positioning means being disposed so that on application of the rack to said member of the printing couple the positioning means will rest on a portion of said surface of the bearer to properly position the rack relatively to said member, the positioning mean being removable from positioning engagement with said member of the printing couple upon fastening of the rack to said member, and bolt or like means for fastening the rack to said member, the rack having at least one opening to receive the bolt or like means, said opening or openings having a transverse internal dimension greater than the corresponding external dimension of the bolt or like means to allow for proper positioning of the rack by said temporary positioning means.

14. Register means for printing presses comprising a rack for application to a member of the printing couple with the pitch line of the rack teeth lying in the extended operative surface of the bearer of said member, temporary positioning means applied to the rack, said positioning means being disposed so that on application of the rack to said member of the printing couple the positioning means will rest on a portion of said surface of the bearer to properly position the rack relatively to said member, the positioning means being removable from positioning engagement with said member of the printing couple upon fastening of the rack to said member, and bolt or like means for fastening the rack to said member, the rack having at least one opening to receive the bolt or like means, said opening or openings having a transverse internal dimension greater than the corresponding external dimension of the bolt or like means to allow for proper positioning of the rack by said temporary positioning means, the rack also having a plurality of dowel pin openings therethrough 15. A method of applying register means to a member of the printing couple of a printing press comprising assembling the register means with said member and positioning the register means in proper operative position with respect to said member by part of the register means, fastening the register means to said member and removing said part of the register means from positioning relationship with respect to said member.

16. A method of applying register means to a member of the printing couple of a printing press comprising assembling the register means with said member and positioning the register means in proper operative position with respect to said member by superimposing on the operative surface of the bearer of said member part of the register means, fastening the register means to said member and removing said part of the register means from superimposed relationship with respect to said surface.

1'7. A method of applying register means to a member of the printing couple of a printing press comprising assembling the register means with said member and positioning the register means in proper operative position with respect to said member by temporary positioning pins on the register means, fastening the register means to said member and removing said pins from positioning relationship with respect to said member.

18. A method of applying a register segment to the printing cylinder of a printing press comprising. assembling the segment with the cylinder and positioning the segment in proper operative position with respect to the cylinder by part of the segment, fastening the segment to the cylinder and removing said part of the segment from positioning relationship with respect to the cylinder.

19. A method of applying register means to a member of the printing couple of a printing press comprising assembling the register means with said member and positioning the register means in proper operative position with respect to said member by part of the register means, fastening the register means to said member by bolt or like means having transverse clearance in an opening in one of the register means and said member and removing said part of the register means from positioning relationship with respect to said member.

20. A method of applying register means to a member of the printing couple of a printing press comprising assembling the register means with said member and positioning the register means in proper operative position with respect to said member by part of the register means, doweling the register means to said member and removing said part of the register means from positioning relationship with respect to said member.

JOSEPH SINKOVITZ. 

